Nuclear “bubble” structure in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Si</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>34</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>

Grasso, M.; Gaudefroy, L.; Khan, E.; Nikšić, Tamara; Piekarewicz, J.; Sorlin, O.; Giai, Nguyen Van; Vretenar, Dario

doi:10.1103/physrevc.79.034318

Cited by 115 publications

(213 citation statements)

References 35 publications

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“…These features are known by bubble, halo and cluster structures of the nuclei and may be observed in light to superheavy nuclei [65,66,67,68,69,70]. Here, we have plotted the density profile for neutron, proton and total matter (neutron plus proton) for some of the predicted closed shell nuclei [60,61] big hump at mid of the centre and the surface.…”

Section: Density Distributionmentioning

confidence: 99%

Structural and decay properties of Z = 132, 138 superheavy nuclei

et al. 2016

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Abstract.In this paper, we analyze the structural properties of Z = 132 and Z = 138 superheavy nuclei within the ambit of axially deformed relativistic mean-field framework with NL3 * parametrization and calculate the total binding energies, radii, quadrupole deformation parameter, separation energies, density distributions. We also investigate the phenomenon of shape coexistence by performing the calculations for prolate, oblate and spherical configurations. For clear presentation of nucleon distributions, the twodimensional contour representation of individual nucleon density and total matter density has been made. Further, a competition between possible decay modes such as α-decay, β-decay and spontaneous fission of the isotopic chain of superheavy nuclei with Z = 132 within the range 312 ≤ A ≤ 392 and 318 ≤ A ≤ 398 for Z = 138 is systematically analyzed within self-consistent relativistic mean field model. From our analysis, we inferred that the α-decay and spontaneous fission are the principal modes of decay in majority of the isotopes of superheavy nuclei under investigation apart from β decay as dominant mode of decay in 318−322 138 isotopes. PACS. PACS-key discribing text of that key -PACS-key discribing text of that key

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Section: Density Distributionmentioning

confidence: 99%

Structural and decay properties of Z = 132, 138 superheavy nuclei

et al. 2016

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“…However, other candidates are still standing. Especially, the proton semibubble structure in 34 Si has been consistently predicted in many works by using different models, such as shell model (SM), nonrelativistic and relativistic microscopic mean-field approaches [9,10], and ab initio self-consistent * bclphy@scu.edu.cn † huan@ciae.ac.cn Green's function many-body method [11]. Experimentally, A. Mutschler et al [19] recently found that the 2s 1/2 proton orbit in 34 Si is essentially empty by using the one-proton removal reaction technique.…”

Section: Introductionmentioning

confidence: 99%

“…Theoretically, a (semi-)bubble structure can exist in many nuclei, ranging from intermediatemass isotopes to hyperheavy systems, including 34 Si [9][10][11], 44 S [12], 46 Ar [12,13], neutron-rich Ar isotopes around 68 Ar [13], 36 Ar and Hg isotopes [3][4][5], superheavy and hyperheavy isotopes [14][15][16][17], etc. Some of these candidates, such as 36 Ar and Hg isotopes, have been ruled out by experiments [18].…”

Section: Introductionmentioning

confidence: 99%

“…A. Wheeler [2] prior to 1950s. The bubble structure is one of the simplest but widely discussed topology structure in history [3][4][5][6][7][8], and it is still a hot topic both theoretically and experimentally in recent years [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. However, a bubble structure is not expected to exist in nuclei because the nature of nucleon-nucleon interaction will lead to a saturation density (ρ sat ∼ 0.16 fm −3 ) at the center of nucleus.…”

Section: Introductionmentioning

confidence: 99%

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Existence problem of proton semi-bubble structure in the 21 + state of 34Si

Bai

Yao

et al. 2017

Eur. Phys. J. A

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“…This method, however, has been applied mostly only stable nuclei due to the difficulty in preparing the target material for short-lived unstable nuclei. Since it has been revealed that some of nuclei far from the stability valley exhibit exotic features such as neutron halo, neutron skin, level inversion, proton bubble structure, evolution of magic numbers, and so on [2,3,4], actualization of electron scattering for the unstable nuclei has been desired.…”

Section: Introductionmentioning

confidence: 99%

First Result from Scrit Electron Scattering Facility : Charge Density Distribution Of 132 Xe

Tsukada¹,

Kasama²,

Namba³

et al. 2017

Proceedings of the 26th International Nuclear Physics Conference — PoS(INPC2016)

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We have constructed the SCRIT electron scattering facility at RIKEN in order to realize electron scattering off unstable nuclei. Because electron scattering is the most powerful and reliable tool to study the internal structure of the atomic nuclei as demonstrated for many stable nuclei in the latter half of the 20th century, actualization of electron scattering for the unstable nuclei has been long awaited. Recently, we have performed a series of elastic electron scattering experiments with 132 Xe target. The high luminosity of around 10 27 cm −2 s −1 which is a minimum-requirement for electron scattering is achieved with using only 10 8 target ions. By comparing with a DWBA calculation assuming the two-parameter Fermi distribution as the nuclear charge density distribution, it is found that a root-mean-square of radius is consistent with that from the measurement of X-ray of muonic atom and an information of surface shape of 132 Xe nucleus is extracted for the first time.

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Nuclear “bubble” structure inSi34

Cited by 115 publications

References 35 publications

Structural and decay properties of Z = 132, 138 superheavy nuclei

Structural and decay properties of Z = 132, 138 superheavy nuclei

Existence problem of proton semi-bubble structure in the 21 + state of 34Si

First Result from Scrit Electron Scattering Facility : Charge Density Distribution Of 132 Xe

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